# Zen Battery vs Battery Testing

The clearest difference is review sentiment: Zen Battery at 89% against Battery Testing's 23%. Zen Battery also leads on ads (none vs shown) and rating (4.7 vs 4.5). Battery Testing's advantage is monetization model (free with in-app purchases vs subscription) and update cadence (fortnightly vs every 18 months). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Zen Battery sells 3 in-app purchases, starting at $1.99 per month and Battery Testing sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Zen Battery holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 8.1K and 12K respectively. Written reviews point the same way: 89% of Zen Battery's written reviews are positive against 23% of Battery Testing's.

Zen Battery ships an update every 18 months, Battery Testing fortnightly. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Zen Battery | Battery Testing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (8.1K ratings)](https://appshunter.io/ios/app/zen-battery/id466431322/reviews)** | [4.5 (12K ratings)](https://appshunter.io/ios/app/battery-testing/id887730232/reviews) |
| Number of ratings | 8.1K | **12K** |
| Positive reviews | **89.0% of reviews** | 23.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 18 months | **Fortnightly** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 117 MB | 61 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Shinobit LLC](https://appshunter.io/developer/1680633187) | [Binh Tran](https://appshunter.io/developer/1386007300) |

## What reviewers say

### Zen Battery

[App page](https://appshunter.io/ios/app/zen-battery/id466431322)

This app provides detailed battery information for your iPhone and iPad, including remaining hours for various activities. Customize the visual display with fluid animations and color options. Receive alerts when your device is fully charged.

**Highlights:** Battery life estimation for music, video, calls, and internet, Customizable 'Zen' display modes, Interactive fluid battery animation, Adjustable liquid color and battery design, Full charge warning sound, Widgets for quick battery status

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Yearly Subscription | $9.99 | per year |
| Lifetime | $19.99 | one-time |

**What reviewers like**

- 👍 Reliable battery monitoring
- 🚀 Accurate battery percentage display
- 💡 Customizable battery color
- 👍 Simple and easy to use
- 👍 Large, clear battery visualization

**What reviewers complain about**

- 🔋 High battery consumption
- 🐛 Inconsistent battery percentage accuracy
- 🔋 Drains device battery quickly
- 🔒 Subscription-based model

**Reported bugs**

- App freezes or crashes
- Ads break app functionality

**Requested features**

- 12-hour clock option
- Battery saver mode
- Widget support
- Ability to disable ads


### Battery Testing

[App page](https://appshunter.io/ios/app/battery-testing/id887730232)

This app helps you understand your iOS device's battery performance. It identifies battery runtimes and provides data to help you determine if your battery needs replacement. Monitor your device's battery health and runtime with detailed insights.

**Highlights:** Monitor device runtimes, Estimated and raw battery data, Check battery health, Identify battery issues

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertisements | $1.99 | one-time |

**What reviewers like**

- 👍 Useful for testing battery health
- 🙂 Provides detailed battery information
- 💡 Helpful for refurbished/older devices

**What reviewers complain about**

- 🔋 Inaccurate battery health readings
- 📺 Excessive ads interrupting testing
- 🐛 Inconsistent and unreliable results
- 🤔 Unclear what the scores represent

**Reported bugs**

- App crashes or stops responding during testing
- Incorrect device information detection

**Requested features**

- Provide more detailed battery health metrics
- Improve accuracy of battery testing
- Reduce ad interruptions during testing


## Frequently asked questions

### Is Zen Battery free?

Zen Battery is free to download, with in-app purchases available.

### Is Battery Testing free?

Battery Testing is free to download, with in-app purchases available.

### Which has better reviews, Zen Battery or Battery Testing?

Zen Battery is rated higher. Zen Battery averages 4.7 out of 5 from 8.1K ratings, while Battery Testing averages 4.5 from 12K ratings.

### Do Zen Battery or Battery Testing have ads?

Battery Testing shows ads; Zen Battery does not.

### Which is updated more often, Zen Battery or Battery Testing?

Zen Battery ships an update every 18 months, and Battery Testing fortnightly. Most recently, Zen Battery was updated on October 1, 2026 and Battery Testing on September 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*